Eyeglass-mounting.



No. 648,894. Patented May I, I900.

c. BILLINGTON .& s. N. sroua.

EYEGLASS MOUNTING.

(No Model.)

QI' a 2 Fl. 3. c 0 g i qxMme/am v atbwam 6, flfm'as I By 5% M0 UNITEDSTATES PATENT FFICE.-

CHARLES BILLINGTON AND SAMUEL N. STONE, OF ATTLEBOROUGH, MASSA-CITUSET'I'S; SAID BILLINGTON ASSIGNOR 'l-O FREDERICK \V. STONE.

EY EGLASS-MOUNTING'.

SPECIFICATION forming part of Letters Patent No. 648,894, dated May 1,1900. Application filed August 17:, 1899. Serial No. 127,517. (No model.

To all whom, it nrty'cortecrn:

Be it known that we, CHARLES B11. LINGTON, a citizen of Great Britain,and SAMUEL N. STONE, a citizen of the United States, residing atAttleb'orough, in the county of Bristol and State of Massachusetts,haveinvented certain new and useful Improvements in Eyeglass.

Mountings; and we do: declare the following 'to be a full, clear, andexact description of the easily applied adjustable strap 'or clamp whichwill fit a lens of any thickness'and when the parts are. properlyassembled will permit the stud or strengthening-piece to be secured uponthe edge of the lens exactly midway between its surfaces. This positionof the stud is found to aiford the firmest and strongest support to thelens, particularly in those eye: glasses which are known ,as framelesslthat is, those wherein the lens es'are held by.

means of a clamping device and haveno frame or rim passingentirely'aroun'd the lenses.

To best accomplish the object stated,'we have devised a clamp or strapconsisting of twin cla lnp members possessing certain wedgeshaped ortapering tails of extensions which are drawn in opposite directionsthrough a or aperture in or through the stud-body, and

suitable aperture or slot in the stud and the ends clipped off andclenched or rounded tosm othly finish the exterior.

aeh constituent element of our invention is described in detail and itsindividual office,

together with the mode of operation offthe whole, fully explainedhereinbelow.

Of the accompanying drawings, Figure 1 represents a side view of thecomplete mounting. in its final shape. mid-sectional view on line X X ofpart of Fig. 1, showing the aperture inthe stud through which the tailsof the clamp members have been drawn. In this view the tails have notbeen clipped, but are delineated projecting Fig. 2 is a horizontal andready for clipping and finishing. Fig. 3 is an outline plan view of thetwin clamp members before being bent.

Likeletters mark the same parts through- I out the drawings, and thesize of each elemen; is slightly exaggeratedto insure clearness ofillustration.

- Considering the drawings, A designatesthe lens, and B and O the twinclamp members,

having the wedge-shaped or tapering tails b and c' andthe relativelywider and flat body portions b and c, pierced by screwthreaded orificesb and 0 (Best shown in Fig. 3.) In

Fig. 3 are shown the shoulders-b and 0*,t1ormed to produc'ea closesmooth finish, as appears in Fig. 1. The tail of each clamp member fitsinto the shoulder of theot-her. 1 Through orifices b and c a screw Dpasses, engaging them and clamping'the lens between them in thecustomary m'anner. 1 The lensis furnished with a proper perforation forthe purpose.

Letter E marks the crescent-shaped crosspiece common to all mountings ofthis do, scriptiomformed' to follow andrest against the edge of thelens, as shown; t f

Letter F marks the main portion or. body of the stud. Three piecesoflthe'm ain body ofv the stud are removed, leaving, first,-'the part ofour present invention, neither bcw' -spring nor nose-guard is shown.

Letter f designates the transverse orifice it is within this orificethat the tails of the drawn through to the proper extent. There resultsa more elegant and sightly finish when the tails of the clamp membersare wedge like or pyramidal and orifice f rectangular in cross-section;but it is believed to be with:

in the scope of our invention to fashion: these I elements conically andcylindrically'. From the outer recess f to the vorifice f there extendsthe screw-hole f threaded to receive andengage the screw G, (seeFig. 2,)by means.

of which the bowspring and nose-guard are secured in recess f.

Ordinarily in assembling the parts of our invention after the tails ofthe clamp members have been bent at right angles with the 1 body, asthey appear in Fig. 2, the tails are passed through orifice f inopposite directions. Now if the extremities of the tails be drawn uponthese parts will jam in orifice f and sufficiently hold the elements inposition. In addition to this, however, screw G may be so selected as tolength as to press against the two jammed tails within the orifice. Anyslipping or other displacement is thus rendered practically impossible.At the time of drawing the tails through the orifice it will readily beunderstood that the cross-piece E may be placed in its permanentposition upon the edge of the lens, midway between its surfaces. Whenthe olipped ends of the clamp members are rounded or turned smoothlydownward, the cross-piece E is thereafter what we claim, and desire toprotect by Letters Patent of the United States, is the following:

1. In an eyeglass-mounting, the combination of a stud'having a suitableaperture, the twin clamp members provided with tails or extensions saidstud having the screw-hole f*,- the sai screw-hole opening into theaperture in the stud, and the screw G adapted to engage sai'dscrew-hole, substantially as described.

2. In an eyeglass-mounting, the combina tion of the stud having asuitable aperture, and the twin clamp members provided with wedge-shapedtails or extensions, substantially as described. v

3. In an eyeglass-mounting, the combination of the stud having asuitable aperture,

and the twin clamp members provided with tails or extensions, said clampmembers having each a shoulder, substantially as described.

In testimony whereof we affix our signatures in presence of twowitnesses.

\Vitnesses:

ELIZA BILLINGT'ON, JOSEPH CALLAHAN.

